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Climate change is having a clear negative impact on polar bears, say scientists, making it harder for them to hunt, mate and breed. Polar bears live in 19 key regions, all of which have experienced some degree of ice loss. Carbon Brief speaks to experts and scientists from around the world to determine what a changing climate means for polar bears.
Rising temperatures are melting the Arctic sea-ice on which polar bears hunt, limiting their access to food. A recent study has found a remote population of polar bears that have adapted to hunt on chunks of glacier ice. The findings may provide a glimpse of how polar bears survived previous warm periods over the past 500,000 years.
The winner is British photographer Nima Sarikhani, who captured a stunning image of a sleeping polar bear after three days of searching for polar bears through thick fog in the Svalbard archipelago. Over 75,000 people voted in the competition, which featured once-in-a-lifetime images from around the world.
We've all seen the pictures: a forlorn polar bear stranded on an ice floe - the living symbol of global warming melting the ice caps. We worry for the polar bears, but most of us are unaware that Arctic melting could be just as dangerous for us.
9 of the most shocking facts about global extinction - and how to stop it Nov 2, 2020
In fact, around half of all species are on the move – from moose and bears to frogs and squirrels – according to researchers at the University of Southern California (USC). The hottest September on record follows the hottest August and hottest July, with the latter being the hottest month ever recorded.
Under the business-as-usual model, all populations of polar bears would be wiped out by 2100, except for the bears living in Canada's northernmost Queen Elizabeth Islands, The Guardian reported. But even under the moderate scenario, most populations were likely to suffer reproductive failure by 2080, the study found.
Polar bears face an increased risk of disease in a warming Arctic as a result of the climate crisis, according to new research published in the scientific journal PLOS One. The researchers compared blood samples taken between 1987 and 1994, to samples collected three decades later - between 2008 and 2017.
Climate change has been damaging polar bears’ sea-ice habitats and forced them to scavenge more for food on land, bringing them into contact with people and inhabited areas. A state of emergency was declared in a remote inhabited area of northern Russian earlier this year when dozens of hungry polar bears were seen scavenging for food and ...
The report’s findings are based on a review of 2,592 studies by scientists at the Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research in Germany, and WWF. They conclude that humans are also at risk from eating seafood polluted with microplastics.